The Boost Society is a French student housing operator and developer managing approximately 40 residential buildings housing ~10,000 people, with a portfolio expansion pipeline targeting 20,000 residents by 2030.
Is this your business? Add your evidence →
The Boost Society operates mid-sized student housing across France with no emissions data, no decarbonisation targets, and no renewable energy strategy. Portfolio expanding rapidly to 20,000 residents by 2030 without any climate commitment. Transparency limited to vague CSR messaging; no formal accountability structure.
The Boost Society scores 27/100 (Significant gaps) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified July 2026.
That places The Boost Society joint 683rd of 847 companies scored, and 26th of 26 in Construction / Real Estate.
The Boost Society sits at the bottom of the construction / real estate pack.
Among the 26 major construction / real estate brands we've scored, The Boost Society sits 26th of 26.
Its three lowest-scoring questions, and what the evidence didn't show.
Zero emissions reduction targets, no SBTi commitment, no net-zero pledge, no carbon neutrality goal.
No supply chain mapping or embodied carbon assessment.
No multi-year emissions tracking, no decarbonisation pathway.
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
Use this score in tenders
Send the link, or the one-page score sheet. It links back to this page and every source. Free.
Open the score sheet →Add your evidence, £99
Scored low because little is published? Send us your evidence. A person reviews it and your score reflects what you really do. Done within 5 working days.
Evidence review →Go tender-ready, £495 a year
A yearly rescore, a check of up to 25 key suppliers and a score badge for your website (coming soon).
Get in touch →Strongest on Controversies & Red Flags and Nature & Biodiversity Impact (8/10, 3/10). Weakest on Targets & Commitments and Carbon Footprint — Supply Chain (0/10, 1/10).
The 3 companies in the sector scoring nearest above The Boost Society.
VINCI reports comprehensive Scope 1 & 2 emissions with GHG Protocol methodology and SBTi-validated targets, but absolute Scope 3 emissions rose to 50.2Mt in 2024.
See the breakdown →Holcim reports comprehensive emissions data and leads in construction waste recycling, but relies overwhelmingly on intensity targets that mask stagnant absolute emissions and hide reliance on unproven CCUS technology.
See the breakdown →Bouygues reports detailed Scope 1, 2, and 3 emissions with SBTi-validated targets across all six business segments, but undermines credibility through intensity-based Scope 3 targets on buildings instead of absolute reductions.
See the breakdown →The formula and all 8 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale8 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
“Thermal insulation meeting the high standards of RT 2012-20, an intelligent lighting system with presence detectors”
“The Boost Society is currently home to 10,000 young people across nearly 40 residences”
“The Boost Society (ex-KLEY) student-residence operator; holding-entity accounts, group ~10,000 beds”
“investment capacity of more than €1.3 billion and a pipeline of more than 16,000 beds”
“La résidence KLEY Saint-Ouen sera située au cœur d'un écoquartier de 100 hectares”
“The Boost Society accueille désormais 7 500 jeunes dans près de 30 résidences”
“Découvrez les engagements RSE de The Boost Society pour offrir des lieux de vie durables”
“THE BOOST SOCIETY (SIREN 803724699, ex-KLEY): chiffre d'affaires 7 387 951 EUR (2023), effectif 50, creee 2014, Levallois-Perret”
If you believe a source has been misread or a newer version exists, submit a challenge.
The Boost Society is a French student housing operator and developer managing approximately 40 residential buildings housing ~10,000 people, with a portfolio expansion pipeline targeting 20,000 residents by 2030. The group acquires properties via VEFA (off-plan purchase) and operates mixed-use residential assets across France. Founded in the mid-2010s, it is a mid-market player in European purpose-built student accommodation.
One email, every Sunday. Score changes, new research, the stories behind the numbers. Free.
No spam. Unsubscribe in one click.
Checking a company?
Search free →Asked to prove you're sustainable?
Get your business scored, free →Been scored?
See what's behind your number →Fees pay for the review, never the result.